When implementing a hashCode function, must the function make use of the entire object that it receives as an argument?

What will be an ideal response?

No. The hashCode function takes an object as a parameter and returns a value that corresponds to a location
in the hash table. If the definition of the class of the object is such that there is a key field in the object, then this field could be
used by the hashCode function to determine the object’s location in the hash table.